“School of Particles And Accelerator”

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Paper   IPM / Particles And Accelerator / 14365
School of Particles and Accelerator
  Title:   The effect of meson wave function on heavy quark fragmentation function
  Author(s):  Seyed Mohammad Moosavi Nejad
  Status:   Published
  Journal: Eur. Phys. J. A
  No.:  127
  Vol.:  52
  Year:  2016
  Supported by:  IPM
We calculate the process-independent fragmentation functions (FFs) for a heavy quark to fragment into heavy mesons considering the effects of meson wave function. In all previous works, where the FFs of heavy mesons or heavy baryons were calculated, a delta function form was approximated for the wave function of hadrons. Here we, for the first time, consider a typical mesonic wave function which is different of the delta function and is the nonrelativistic limit of the solution of Bethe-Salpeter equation with the QCD kernel. We shall present our numerical results for the heavy FFs and show how the proposed wave function improves the previous results. As an example, we focus on the fragmentation function for c-quark to split into S-wave D0 meson and compare our results with experimental data from BELLE and CLEO.

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